PMID- 29052220 OWN - NLM STAT- MEDLINE DCOM- 20190409 LR - 20211204 IS - 1532-6535 (Electronic) IS - 0009-9236 (Linking) VI - 103 IP - 2 DP - 2018 Feb TI - Efficacy From Strange Sources. PG - 253-261 LID - 10.1002/cpt.916 [doi] AB - Reverse translation (RT) refers to perceptions and observations of clinical outcomes, both beneficial and harmful, that can lead to a hypothesis intended to identify a new use of a drug that is different from the original use. I provide a panoramic view of successes in RT from the historic discovery of penicillin to the contemporary development of CAR (chimeric antigen receptor) T therapies. I delineate the core principles of RT that shift discovery from serendipity to a systematic strategy based on target identification and causal biology, pharmacodynamic biomarkers that recapitulate disease pathophysiology, confirmation of target engagement by clinical proof of concept studies, and optimal selection of dose and interval. The article proposes four different categories of RT and successful examples are provided for each category. It concludes with a summary of open questions related to the business case of RT that includes a comparison of the pros, cons, and barriers to future RT development programs. CI - (c) 2017 American Society for Clinical Pharmacology and Therapeutics. FAU - Lesko, Lawrence J AU - Lesko LJ AD - University of Florida at Lake Nona, Orlando, Florida, USA. LA - eng PT - Journal Article PT - Review DEP - 20171201 PL - United States TA - Clin Pharmacol Ther JT - Clinical pharmacology and therapeutics JID - 0372741 SB - IM MH - Animals MH - Data Mining/*methods MH - Databases, Factual MH - Drug Development/*methods MH - Drug Discovery/*methods MH - Drug Interactions MH - Drug-Related Side Effects and Adverse Reactions/etiology MH - Evidence-Based Medicine/*methods MH - Humans MH - Models, Animal MH - Models, Theoretical MH - Molecular Targeted Therapy MH - Patient Safety MH - Risk Assessment MH - Translational Research, Biomedical/*methods EDAT- 2017/10/21 06:00 MHDA- 2019/04/10 06:00 CRDT- 2017/10/21 06:00 PHST- 2017/09/05 00:00 [received] PHST- 2017/10/13 00:00 [revised] PHST- 2017/10/14 00:00 [accepted] PHST- 2017/10/21 06:00 [pubmed] PHST- 2019/04/10 06:00 [medline] PHST- 2017/10/21 06:00 [entrez] AID - 10.1002/cpt.916 [doi] PST - ppublish SO - Clin Pharmacol Ther. 2018 Feb;103(2):253-261. doi: 10.1002/cpt.916. Epub 2017 Dec 1.